Car.



AJVG. MGKEE.'

, CARL APPMQATION FILED Nov.7,419`o7..

Patentea Dec. 12, 1911;

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GAR; APPLICATION PILEDNOV. 7, 1907.y

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Patented Dec. 12, 1911.

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"ie'it'lniown that l, ARTHUR G, McKee, a

citizen "of thellnited' States, residing at Cleveland, inthe count-y lofCuyahoga and *S'ta'te'o'f Ohio, have :invented a certain. new

"and useful'lmprovement in- Cars, of which thefffollowing is ay full,fcleai', and exact dey scription.

{CE-he object` ofthe `present invention is to provide an. improved carwith .a bottom dis'- charge, having suitable construction which sha-llpermit it to be readily and completely j 4emptied of its loadwhile.entailing the mini? inum'fef edfort onthe part of the operator. f

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.. heavy and hard to move as to 'make it Chiticult-for a single-mantoAoperate-th'eni 'orY else soslow viuzwtionas to` fender; 'heir use-.mbdesirable. l y

V.Certain prior arrangements havebeen providedwhereby the doorupcng'-release is left 'free to swingopen under the impulse of its i. ownweightand the weight of 'the load above breaking of parts.

itpa construction which resiilts in the door being'throwii violentlyupon'soine `part vof the car,y with `,the consequent warping or With.thisv prior conf struction in which the door swings open by its ownweight, a considerable task is iinposed upon the operatortofsubsequently *close 'the' saine since the Weight of these vdoors isgreat, as' well known tothose'slrilled the-art. 'l have, however,devised aii'aiA rangement whereby't-lie door may be'instantaneouslyreleased and opened byl the .open atei' with small edort and the vdoorallowed to move entirely back and away from the opening so as to 'allowthe material freie passagefrom' vthe 'car,'and by .which the door isclosed easilyA andwithout the use' of 'great force. 'l lfurtlier haveprovided a' mecha -nisrn for 'operating the door. which, shall 'hold itsecurely in its closed position against l invention,

the pressure o'f theloadabove-.- Y

Referring to the. accompanying drawings, which illustrate certainembodiments of my Figure l is la cross section ofalhottolndis,-l

v*charge car,- the :operating mechanism forfthe one.'

M lparticular purpose has I been *tov arrangf'eA l thenechanism forsoperating` the door con- 4 v v Specification of Letters Patent. nPatented 73130.12, 1911. ,iippiieaumi ined November, iso?. f seriaino.401.051.

`door` being` shown in *y dotted lines for both the-closed and openpositions. Fig. Zislan end view of the car shown in Fig. l. n Fig. 3l

.is aside View of the car shown in Figs. l andQ. Fig. d is a crosssection of a car prolvided with a modification of the operatingmechanism for opening and closing the door. Fig. 5 isan end view of aportion of a car providedwith a pair of doors which are connectedtogether so as to be simultaneously operated., f'

yThe car itself may be of-any desired construction, though` preferablyit should be of lthe forni 'shown-that is provided with convergingdownwardly sloping side walls, one or both of which may be shortened sothat the lower or V point of the car is formed by veither a single doorand one side' wall, or by `a pair of doors, such as lshown in Fig. 5.Obviously, With such'construction, when the door is moved away from itsclosed position, .the 'car may be 'completely emptied` lt/will be notedthat in the various emf These links are secured l from the. point atwhich it is when 'the door is in closed'positio'n. This is a' feature ofstructure which obtains in every forni of my construction, and which ishad ,with every niodication `of operating mechanism by,

which thel door may be opened or closed.

By reasonl of the dooi1 being suspended in this manner, itr would, ofcourse, require some edort to open the same, since the pull of gravitywould 'be in such a direction as to y cause it to normally swing to aclosed position, and inasmuch as doors and their parts are very heavy,it shouldv be' seen in constructing these cars that the rise of thecenter of gravity is not too great. The weight of theload in the car,however, is a factor to be taken into consideration, since this loadwill tend to swingtlie car open until ysulficient spaceisfgiven forthenmaterial vin the can to falltherefrom: and, as this load is normallyquite heavy, means should, as a .matter of fact, be provided toliold'the door firmly closed. The means which I employ for this lastnamed purpose is,lpreferably, toggle links B B, such as shown in.thevarions figures, which have great capacity for resisting thrustpressures.

For the operation of the toggle links I nay provide, as shown in Fig.1,a`shaft C 'through the end of'that toggle link -B which is pivotallyconnected to the door, which` shaft is keyed to the toggle link andisalso keyed to an operating lever C on the-outside of the 'car at oneend thereof, as shown in Figs. 1, 2 and 3. In Fig. 2 the position of theoperating lever is'shown as that in which the door is closed, when thelever is' .mit thetoggle link to straighten out under the tendencyl ofthe door to swing downwardffthe structure being,as above stated, suchthat the center of gravity of the door and its appurtenant parts is atits lowest position when the door is closed. Thus, it is possible forthese very heavy structures to be handled lwith ease by a single manwithout any sacrifice of effectiveness asa closure or the free fullopening of the door is made to permit a rapid discharge of the contentsof the car. To one familiar with the massiveness and cumbersomecharacter of the apparatus these advantages will ap.- pear to be ofgreat value.

In the -form of operating mechanism' shown in Fig. 4, I show the use ofthe counterweight D rigidly connected with the link B of the togglefarther from the door, so

4hung as to tend 'to break the toggle joint and thereby assist theoperator in the first movement of opening-the door. For the purpose ofbreaking the -toggle in this structure, I have provided'a draw rodI Epivotally connected to the pin `E `of the. toggle knuckle, which rodpasses upward through a guiding and'retaining bracket E2 on the side ofthe car,-a handle E3 bein secured into the upper end of the rod to a ordconvenient means for the operator to draw the same upward in order toeffect the breaking' of 4the joint.v In` order to lock the parts in any.desired position, a quick acting screw -E- having an operating lever.Ei on the-end thereof is mounted in the side of the guide bracket insuch'position that it may be forced against the side of the draw vrodand. n

' its ends. to the door'and. at its opposite endl.

bindv it in place.

ranged soas .to cause the lower end thereof, afdoor In the modificationshown .in Fi .15 -s` pair of .doors-form theiV-v` oint of i.;A e cgt,and in this modification,..ae inthe others, the vdoors .areeacli`si1spended4- on= sn'pportingfl links, as before -The" .o eratin'g70 toggles in this cassuremanipulated ya sin?" gle hand lever F. mountedonand' keyed a lshaft -F on the 'car frame, towhicli shaft 'is alsokeyed larockin lever -F'havin .'piv-'yfotal cross rod connection Fwithasimilarly mounted rocking'lever F* .onthe opposite side of the car.Rigidl l connected with each of thejshafts on whic the .aforesaidrocking levers F? F* are-keyed, is a'shortA pro-l jecting arm Fhavin'-'a link 'F9 connecting the end thereof wit one of thel-togglelinka-'the variousv parts being properly'arboth 'doors to `move` opensimultaneously. It will be noted that atthe lower end of 35 one of thedoors I provide an angular-ly disposed lip G, placed so as to extendacross the line of juncture of the lower edges of.

the' two doors, and thus check'the material in the event of an imperfectalinement of d the meeting edges which might permitine particles to seepout between the doors.

KIVhatever may be the modification of the operating connections,however, v.it be-` seen -that at closure constructed according to myinvention will be capable of sustain` v any probable load and yet .becapableof be-v ing swung clear ofthe, discharge` opening so as to permita "freepassage ofthe con'- tents of the car therethrough, and this -with.109.'

comparatively little e'ifort onf/the part'of the operator and withoutimposing uponthe operator thenecessity of exerting. himself unduly toclose the doors. These and other i advantages li'owing -from -thearrangement 'ofparts will be obvious to thosefskille'd inthe art. .l

Having described my invention, Iclaim 1. In a car having slanting sides,and an j .opening inone of'said sides near "the bottom thereof, adoorfor closin said opening, links pivoted to: each end o? the door andto the end ofthe "car body, said door being so hung that it closesbyvits own gravity.

'2. In a car lhaving slanting 4sides and an opening in one of said sidesnear thebottom" thereof, a door for closing-said opening, links pivotedto eachfendA of the door and to the endof the car body, said door. beingso hung that it closes by its own gravity, means -for securing saiddoor, said door belng op'- erableto -befop'ened by the load'when thesecuring means isreleased.

3. In a car having a `discharge opening at i or said opening,a`pair.oflinks secured by `one-.of their ends to each'endv of the door and attheir .other ve'nds--piv ted upon the ends .of the carbody, atogglelever securediat one of minnie to axed part of the em", and meansfor holding the said toggle thereby to hold the door in closed position.

Y t, In near having a discharge opening at 5 thelowei end thereof, adoor for said openingsuspended and controlled by a pair oi links at eachend pivotally connected near its respective sides, said links beingconnected'to allowr ,the door an 'outward movement 10 away from theopening, said door being hung so that its center of gravity is raised lduring its initial opening and final closing movement, mechanical meansfor moving the door inward and outward, and a counter Weight for saiddcoi` located to counteract 15 v:i portion of lthe load upon theoperating connections In testimony whereof, I hereunto alix my signaturein the presence of tivo Witnesses.

ARTHUR G. MGKEE. Witnesses A. C. NELSON, L. Ross ELLETT.

